Journal of Animal Science, Vol 70, Issue 6 1857-1863, Copyright © 1992 by American Society of Animal Science

JOURNAL ARTICLE

Methionine requirement of pigs between 5 and 20 kilograms body weight

T. K. Chung and D. H. Baker
Department of Animal Sciences, University of Illinois, Urbana 61801.

Four nursery experiments were conducted using a methionine (Met)-deficient feather meal-corn-soybean meal-dried whey basal diet (20% CP; 3,250 kcal of ME/kg, .11% choline, .19% Met, 1.00% cystine) supplemented with lysine, tryptophan, and histidine to determine the Met requirement of 5- to 10- and 10- to 20-kg pigs. Based on a true Met digestibility value of 81.6% estimated by a pig ileal digestibility assay, the Met-deficient basal diet contained .155% of digestible Met. A preliminary experiment (Exp. 1) indicated that pigs fed the Met-deficient basal diet when fortified adequately with Met could produce weight gains similar to those of pigs fed a 20% CP practical corn-soybean meal-dried whey diet. In Exp. 2 and 3, crossbred pigs weighing 5.8 kg initially were fed diets containing graded levels of digestible Met between .195 and .355%. Average daily gain increased quadratically (P less than .05) as the level of Met increased. When the data of Exp. 2 and 3 were examined together, the digestible Met requirement of 5- to 10-kg pigs was estimated to be .255% of the diet. In Exp. 4 and 5, crossbred pigs averaging 10 kg were fed digestible Met concentrations ranging from .155 to .315%. Average daily gain increased quadratically (P less than .05). The digestible Met requirement of 10- to 20-kg pigs was estimated at .255% for maximal weight gain, which was similar to that of 5- to 10-kg pigs. Assuming an 89% digestibility of Met in practical corn-soybean meal diets, the total Met level needed in practice would be .29%.(ABSTRACT TRUNCATED AT 250 WORDS)

This article has been cited by other articles:

				S. Moehn, A. K. Shoveller, M. Rademacher, and R. O. Ball An estimate of the methionine requirement and its variability in growing pigs using the indicator amino acid oxidation technique J Anim Sci, February 1, 2008; 86(2): 364 - 369. [Abstract] [Full Text] [PDF]

				G. F. Yi, A. M. Gaines, B. W. Ratliff, P. Srichana, G. L. Allee, K. R. Perryman, and C. D. Knight Estimation of the true ileal digestible lysine and sulfur amino acid requirement and comparison of the bioefficacy of 2-hydroxy-4-(methylthio)butanoic acid and DL-methionine in eleven- to twenty-six-kilogram nursery pigs J Anim Sci, July 1, 2006; 84(7): 1709 - 1721. [Abstract] [Full Text] [PDF]

				S. Toue, R. Kodama, M. Amao, Y. Kawamata, T. Kimura, and R. Sakai Screening of Toxicity Biomarkers for Methionine Excess in Rats J. Nutr., June 1, 2006; 136(6): 1716S - 1721S. [Abstract] [Full Text] [PDF]

				A. M. Gaines, G. F. Yi, B. W. Ratliff, P. Srichana, D. C. Kendall, G. L. Allee, C. D. Knight, and K. R. Perryman Estimation of the ideal ratio of true ileal digestible sulfur amino acids:lysine in 8- to 26-kg nursery pigs J Anim Sci, November 1, 2005; 83(11): 2527 - 2534. [Abstract] [Full Text] [PDF]

				A. K. Shoveller, J. A. Brunton, P. B. Pencharz, and R. O. Ball The Methionine Requirement Is Lower in Neonatal Piglets Fed Parenterally than in Those Fed Enterally J. Nutr., May 1, 2003; 133(5): 1390 - 1397. [Abstract] [Full Text] [PDF]